148 



MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



9. Eragrostis glomerata (Walt.) L. 

 H. Dewey. (Fig. 194.) Annual; culms 

 erect, 20 to 100 cm. tall, branching 

 below, the branches erect; blades 

 flat, 3 to 8 mm. wide, tapering to a 

 fine point; panicle narrow, erect, 

 densely flowered, somewhat inter- 

 rupted, 5 to 50 cm. long, greenish or 

 tawny, the branches ascending or 

 appressed, floriferous to base, many- 

 flowered ; spikelets short-pediceled, 

 mostly 6- to 8-flowered, 2 to 3 mm. 

 long; glumes minute; lemmas very 

 thin, about 1 mm. long; grain about 



Figure 193. — Eragrostis amabilis. Panicle, X 3^ 5 

 spikelet, X 10. (Meislahn 10, Fla.) 



0.3 to 0.4 mm. long. O (E. con- 

 ferta Trin.) — Banks of ponds and 

 streams, and low ground, South 

 Carolina to Florida, Missouri, and 

 eastern Texas, south through Mexico 

 and the West Indies to Uruguay. 



Section 2. Pteroessa Doell 



Rachilla of spikelet continuous, not 

 disarticulating at maturity; palea 

 usually persistent for a short 

 time after the fall of the lemma 

 (sometimes falling with it in E. 

 unioloides and E. chariis). 

 10. Eragrostis reptans (Michx.) 

 Nees. (Fig. 195.) Annual, dioecious; 

 culms branching, creeping, rooting at 

 the nodes, forming mats; blades flat, 

 usually pubescent, mostly 1 to 3 cm. 

 long; panicles numerous, ovoid, usual- 

 ly rather dense or capitate, few- to 









Figube 194. — Eragrostis glomerata. Panicle, X 

 spikelet and floret, X 10. (Eggert, Ark.) 



several-flowered, rarely many-flow- 

 ered, mostly 1 to 2 cm. long; spikelets 

 several- to many-flowered, linear, at 

 length elongate and more or less 

 curved; lemmas closely imbricate, 

 often sparsely villous, acuminate, 

 about 3 mm. long; palea of pistillate 

 floret about half as long as the lemma, 



